Pointers in C

The Pointer in C programming language is a variable that stores the address of other variables.

The pointer variable is such as int, float, char, double, short, etc.

Syntax:

data_type*var_name;

Example:

int*p; char*p;

Note: * denotes that p is the pointer variable, not a normal variable.

The example program for a pointer in the C is the following:

#include <stdio.h>
 int main()
 {
    int*ptr, q;
    q =80;
    /* address of q is assigned to ptr */
    ptr =&q;
    /* display q's value using ptr variable */
    printf("%d", *ptr);
    return 0;
 }

Result: 80